[CatalogPromotion][API][UI] Fixed discount action

docs/book/products/catalog_promotions.rst

@@ -292,6 +292,8 @@ Catalog Promotion Actions configuration reference
 +-------------------------------+--------------------------------------------------------------------+
 | Action type                   | Action Configuration Array                                         |
 +===============================+====================================================================+
+| ``fixed_discount``            | ``[$channelCode => ['amount' => $amountInteger]]``                 |
++-------------------------------+--------------------------------------------------------------------+
 | ``percentage_discount``       | ``['amount' => $amountFloat]``                                     |
 +-------------------------------+--------------------------------------------------------------------+
 

features/promotion/applying_catalog_promotions/applying_all_available_types_of_catalog_promotions.feature

@@ -0,0 +1,23 @@
+@applying_catalog_promotions
+Feature: Applying all available types of catalog promotions
+    In order to see products in best prices
+    As a Customer
+    I want to see discounted products in the catalog
+
+    Background:
+        Given the store operates on a channel named "Web-US"
+        And the store classifies its products as "Clothes"
+        And the store has a "T-Shirt" configurable product
+        And this product belongs to "Clothes"
+        And this product has "PHP T-Shirt" variant priced at "$100.00" in "Web-US" channel
+        And there is a catalog promotion "PHP sale" that reduces price by "10%" and applies on "PHP T-Shirt" variant
+        And there is a catalog promotion "T-Shirt sale" that reduces price by "10%" and applies on "T-Shirt" product
+        And there is a catalog promotion "Clothes sale" that reduces price by "10%" and applies on "Clothes" taxon
+        And there is a catalog promotion "Fixed PHP sale" that reduces price by fixed "$5.00" in the "Web-US" channel and applies on "PHP T-Shirt" variant
+        And there is a catalog promotion "Fixed T-Shirt sale" that reduces price by fixed "$5.00" in the "Web-US" channel and applies on "T-Shirt" product
+        And there is a catalog promotion "Fixed Clothes sale" that reduces price by fixed "$5.00" in the "Web-US" channel and applies on "Clothes" taxon
+
+    @api @ui
+    Scenario: Applying multiple catalog promotions
+        When I view "PHP T-Shirt" variant of the "T-Shirt" product
+        Then I should see this variant is discounted from "$100.00" to "$57.90" with 6 promotions

features/promotion/applying_catalog_promotions/applying_catalog_promotion_with_proper_priorities.feature

@@ -6,12 +6,16 @@ Feature: Applying catalog promotion with proper priorities
 
     Background:
         Given the store operates on a single channel in "United States"
+        And the store classifies its products as "Clothes"
         And the store has a "T-Shirt" configurable product
+        And this product belongs to "Clothes"
         And this product has "PHP T-Shirt" variant priced at "$100.00"
-        And there is a catalog promotion "Clothes sale" with priority 10 that reduces price by "30%" and applies on "PHP T-Shirt" variant
-        And there is a catalog promotion "Winter sale" with priority 100 that reduces price by "50%" and applies on "PHP T-Shirt" variant
+        And there is a catalog promotion "Autumn sale" with priority 10 that reduces price by "25%" and applies on "PHP T-Shirt" variant
+        And there is a catalog promotion "Winter sale" with priority 40 that reduces price by fixed "$10.00" in the "United States" channel and applies on "T-Shirt" product
+        And there is a catalog promotion "Spring sale" with priority 20 that reduces price by fixed "$5.00" in the "United States" channel and applies on "Clothes" taxon
+        And there is a catalog promotion "Summer sale" with priority 30 that reduces price by "50%" and applies on "PHP T-Shirt" variant
 
     @api @ui
     Scenario: Applying catalog promotion with descending order by their priority
         When I view "PHP T-Shirt" variant of the "T-Shirt" product
-        Then I should see this variant is discounted from "$100.00" to "$35.00" with "Winter sale" and "Clothes sale" promotions
+        Then I should see this variant is discounted from "$100.00" to "$30.00" with "Winter sale", "Summer sale", "Spring sale" and "Autumn sale" promotions

features/promotion/applying_catalog_promotions/applying_catalog_promotions_with_fixed_discount_action.feature

@@ -0,0 +1,28 @@
+@applying_catalog_promotions
+Feature: Applying catalog promotions with fixed discount action
+    In order to be attracted to specific products
+    As a Visitor
+    I want to see discounted products in the catalog
+
+    Background:
+        Given the store operates on a single channel in "United States"
+        And the store has a "T-Shirt" configurable product
+        And this product has "PHP T-Shirt" variant priced at "$20.00"
+        And this product has "Java T-Shirt" variant priced at "$30.00"
+        And there is a catalog promotion "Winter sale" that reduces price by fixed "$10.00" in the "United States" channel and applies on "T-Shirt" product
+
+    @api @ui
+    Scenario: Applying simple catalog promotion
+        When I view "PHP T-Shirt" variant of the "T-Shirt" product
+        Then I should see this variant is discounted from "$20.00" to "$10.00" with "Winter sale" promotion
+
+    @api @ui @javascript
+    Scenario: Applying simple catalog promotion on another variant
+        When I view "Java T-Shirt" variant of the "T-Shirt" product
+        Then I should see this variant is discounted from "$30.00" to "$20.00" with "Winter sale" promotion
+
+    @api @ui
+    Scenario: Applying multiple catalog promotions
+        Given there is a catalog promotion "Christmas sale" that reduces price by fixed "$5.00" in the "United States" channel and applies on "PHP T-Shirt" variant
+        When I view "PHP T-Shirt" variant of the "T-Shirt" product
+        Then I should see this variant is discounted from "$20.00" to "$5.00" with "Winter sale" and "Christmas sale" promotions

features/promotion/applying_catalog_promotions/applying_catalog_promotions_with_taking_minimum_price_into_account.feature

@@ -0,0 +1,30 @@
+@applying_catalog_promotions
+Feature: Applying catalog promotions with taking minimum price into account
+    In order to avoid too much discount applied on product
+    As a Visitor
+    I want to see discounted products in the catalog up to minimum price
+
+    Background:
+        Given the store operates on a single channel in "United States"
+        And the store has a "T-Shirt" configurable product
+        And this product has "PHP T-Shirt" variant priced at "$20.00"
+        And the "PHP T-Shirt" variant has minimum price of "$15.00" in the "United States" channel
+
+    @api @ui
+    Scenario: Applying percentage discount up to minimum price
+        Given there is a catalog promotion "Winter sale" that reduces price by "80%" and applies on "PHP T-Shirt" variant
+        When I view "PHP T-Shirt" variant of the "T-Shirt" product
+        Then I should see this variant is discounted from "$20.00" to "$15.00" with "Winter sale" promotion
+
+    @api @ui
+    Scenario: Applying fixed discount up to minimum price
+        Given there is a catalog promotion "Winter sale" that reduces price by fixed "$10.00" in the "United States" channel and applies on "PHP T-Shirt" variant
+        When I view "PHP T-Shirt" variant of the "T-Shirt" product
+        Then I should see this variant is discounted from "$20.00" to "$15.00" with "Winter sale" promotion
+
+    @api @ui
+    Scenario: Not applying promotion if product is priced on same price as its minimum price
+        Given there is a catalog promotion "Winter sale" that reduces price by "80%" and applies on "PHP T-Shirt" variant
+        And there is a catalog promotion "T-shirt Sale" that reduces price by "40%" and applies on "PHP T-Shirt" variant
+        When I view "PHP T-Shirt" variant of the "T-Shirt" product
+        Then I should see this variant is discounted from "$20.00" to "$15.00" with only "Winter sale" promotion

features/promotion/managing_catalog_promotions/creating_catalog_promotion.feature

@@ -67,6 +67,18 @@ Feature: Creating a catalog promotion
         And it should have "winter_sale" code and "Winter sale" name
         And the catalog promotion "Winter sale" should be available in channel "United States"
 
+    @api @ui @javascript
+    Scenario: Creating a catalog promotion with fixed discount action
+        When I want to create a new catalog promotion
+        And I specify its code as "winter_sale"
+        And I name it "Winter sale"
+        And I add scope that applies on "Clothes" taxon
+        And I add action that gives "$10.00" of fixed discount in the "United States" channel
+        And I add it
+        Then there should be 1 new catalog promotion on the list
+        And it should have "winter_sale" code and "Winter sale" name
+        And the "Winter sale" catalog promotion should have "$10.00" of fixed discount in the "United States" channel
+
     @api @ui @javascript
     Scenario: Creating a catalog promotion for taxon
         When I want to create a new catalog promotion

features/promotion/managing_catalog_promotions/editing_catalog_promotion.feature

@@ -76,6 +76,12 @@ Feature: Editing catalog promotion
         Then I should be notified that it has been successfully edited
         And this catalog promotion should have "40%" percentage discount
 
+    @api @ui @javascript
+    Scenario: Editing catalog promotion action to be a fixed discount
+        When I edit "Christmas sale" catalog promotion to have "$10.00" of fixed discount in the "United States" channel
+        Then I should be notified that it has been successfully edited
+        And this catalog promotion should have "$10.00" of fixed discount in the "United States" channel
+
     @api @ui
     Scenario: Being unable to edit catalog promotion if it is currently being processed
         Given the catalog promotion "Christmas sale" is currently being processed

features/promotion/managing_catalog_promotions/validating_catalog_promotion_creation.feature

@@ -114,6 +114,48 @@ Feature: Validating a catalog promotion creation
         Then I should be notified that a discount amount should be a number and cannot be empty
         And there should be an empty list of catalog promotions
 
+    @api @ui @javascript
+    Scenario: Trying to create a catalog promotion with not configured fixed discount action
+        When I want to create a new catalog promotion
+        And I specify its code as "winter_sale"
+        And I name it "Winter sale"
+        And I make it available in channel "United States"
+        And I specify its label as "Winter -50%" in "English (United States)"
+        And I describe it as "This promotion gives a $10.00 discount on every product" in "English (United States)"
+        And I add scope that applies on variants "PHP T-Shirt" variant and "Kotlin T-Shirt" variant
+        And I add fixed discount action without amount configured
+        And I try to add it
+        Then I should be notified that a discount amount should be configured for at least one channel
+        And there should be an empty list of catalog promotions
+
+    @api @ui @javascript
+    Scenario: Trying to create a catalog promotion with wrong value of fixed discount action
+        When I want to create a new catalog promotion
+        And I specify its code as "winter_sale"
+        And I name it "Winter sale"
+        And I make it available in channel "United States"
+        And I specify its label as "Winter -50%" in "English (United States)"
+        And I describe it as "This promotion gives a $10.00 discount on every product" in "English (United States)"
+        And I add scope that applies on variants "PHP T-Shirt" variant and "Kotlin T-Shirt" variant
+        And I add invalid fixed discount action with non number in amount for the "United States" channel
+        And I try to add it
+        Then I should be notified that a discount amount should be configured for at least one channel
+        And there should be an empty list of catalog promotions
+
+    @api
+    Scenario: Trying to create a catalog promotion with fixed discount action with invalid channel
+        When I want to create a new catalog promotion
+        And I specify its code as "winter_sale"
+        And I name it "Winter sale"
+        And I make it available in channel "United States"
+        And I specify its label as "Winter -50%" in "English (United States)"
+        And I describe it as "This promotion gives a $10.00 discount on every product" in "English (United States)"
+        And I add scope that applies on variants "PHP T-Shirt" variant and "Kotlin T-Shirt" variant
+        And I add invalid fixed discount action configured for nonexistent channel
+        And I try to add it
+        Then I should be notified that at least one of the provided channel codes does not exist
+        And there should be an empty list of catalog promotions
+
     @api @ui @javascript
     Scenario: Trying to create a catalog promotion with taxon type without taxons
         When I want to create a new catalog promotion